Merged in masterschlumpf/beremiz/wx3-fix (pull request #37)

Fix an exception with wx-3.0-gtk3 in PLCOpenEditor when generating ST files

Approved-by: Andrey Skvortsov <andrej.skvortzov@gmail.com>

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<?xml version='1.0' encoding='utf-8'?>

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<BeremizRoot xmlns:xsd="http://www.w3.org/2001/XMLSchema" URI_location="LOCAL://">

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  <TargetType>

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    <Linux/>

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  </TargetType>

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</BeremizRoot>